JaneDoe911 JaneDoe911

02-05-2018
Mathematics

contestada

(a-1)*(a+1) How does the expansion of this thing works?

Respuesta :

Meow321 Meow321

02-05-2018

This is a simple formula:(a-b)*(a+b)= a^2-b^2
And it goes like this for your example: (a-1)*(a+1)=a*a+a-a-1*1=a^2-1^2=a^2-1

Answer Link

Otras preguntas

In order to leave Europe, the Pilgrims needed to

Will upvote if answered!!!!!! Why were gay Americans afraid to "come out of the closet" in the 1950s and early 1960s? They feared being considered a minority.

Which expression shows a sum of three terms? x3 3 + x + 3 3x 3(x + 3)

Find the distance traveled at 52 miles per hour for 5 hours.

Find the product of 4 5\6 and 2 1\2. Express your answer in simplest form. A. 8 5\12 B. 12 1\12 C. 1 14\15 D. 6 3\4

What role does school, mass media, interest groups, and religious organizations have in shaping public opinion

what is 365-84+017%0.98+15803-76×91749

Need help with a b c

which one is larger 2/4 or 5/8

How do you start this problem?